20802558

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{173}}^1\times {\mathrm{409}}^1$

素因数の和:601

約数の個数: 48

約数和(自身を含む): 48796560

約数和(自身を除く): 27994002

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 49, 98, 147, 173, 294, 346, 409, 519, 818, 1038, 1211, 1227, 2422, 2454, 2863, 3633, 5726, 7266, 8477, 8589, 16954, 17178, 20041, 25431, 40082, 50862, 60123, 70757, 120246, 141514, 212271, 424542, 495299, 990598, 1485897, 2971794, 3467093, 6934186, 10401279, 20802558]

約数ペア:

[(1, 20802558), (2, 10401279), (3, 6934186), (6, 3467093), (7, 2971794), (14, 1485897), (21, 990598), (42, 495299), (49, 424542), (98, 212271), (147, 141514), (173, 120246), (294, 70757), (346, 60123), (409, 50862), (519, 40082), (818, 25431), (1038, 20041), (1211, 17178), (1227, 16954), (2422, 8589), (2454, 8477), (2863, 7266), (3633, 5726)]